Two progressive waves are travelling towards each other with a velocity of 50 m/s and a frequency of 200 Hz, forming a standing wave. The distance between two consecutive antinodes is:

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?